Extech Model CB10 Circuit Breaker Finder and Receptacle Tester is a circuit breaker locator and receptacle tester produced by Extech. This instrument is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.
The Extech CB10 is a handheld instrument designed to locate circuit breakers and test receptacle wiring and GFCI functionality. It consists of a transmitter and a receiver unit. The transmitter plugs into an outlet to inject a signal, while the receiver detects this signal to identify the controlling breaker or displays LED codes for wiring conditions.
| Operating Voltage | 90 to 120V |
|---|---|
| Operating Frequency | 47 to 63Hz |
| Power supply | 9V battery (receiver) |
| Operating Temperature | 41ºF to 104ºF (5ºC to 40ºC) |
| Weight | 5.9oz (167g) |
| Dimensions | 8.5” x 2.2” x 1.5” (215 x 56 x 38mm) |
| Operating Altitude | 7000ft. (2000meters) maximum |
Always test the instrument on a known good circuit before use to ensure it is functioning correctly.
No, the tester will not indicate the quality of the ground connection, two hot wires in a circuit, a combination of defects, or reversal of ground and neutral conductors.